임의 구분전파전자통신기능사 · 2013년06월09일 · 23/60
23.Choose the most suitable term for the following description.
1
common service
2
safety service정답
3
urgent service
4
distress service
해설
ITU - Radio Regulations Articles Edition of 2020 1.59 규정 내용
ITU - Radio Regulations Articles Edition of 2020 1.59 규정 내용